Explode the [Cross] Clover

Ends Cloverleaf (or Cross Cloverleaf), while the centers Trade and Roll.

\syhlines{g1w,g2w,b4e,b1e} \sxvlines{b1s,g4s,b4n,g3n}
1 3 2 4 4 2 1 3 1 3 4 2 4 2 3 1
before Explode the Clover after